Home / 20,723,307.78-28,598,622.39-11,431,160.22

Finding the Fourth Proportional to 20,723,307.78, 28,598,622.39 and 11,431,160.22

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Solution

The fourth proportional to 20,723,307.78, 28,598,622.39 and 11,431,160.22 is: 15,775,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,307.78 : 28,598,622.39 = 11,431,160.22 : x
  2. Step 2: Convert to fraction form
    20,723,307.78/28,598,622.39 = 11,431,160.22/x
  3. Step 3: Cross multiply
    20,723,307.78x = 28,598,622.39 × 11,431,160.22
  4. Step 4: Simplify right side
    20,723,307.78x = 326,915,434,611,369.38
  5. Step 5: Solve for x
    x = 326,915,434,611,369.38/20,723,307.78
  6. Step 6: Final answer
    x = 15,775,253.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.